DEVELOPMENT, OPTIMIZATION, AND CHARACTERIZATION OF A MULTIFUNCTIONAL BROAD-SPECTRUM MINERAL SUNSCREEN STICK INCORPORATING NIACINAMIDE AND TOCOPHEROL FOR UV PROTECTION, SKIN-BRIGHTENING, AND SEBUM CONTROL. Biosci. Insights. [Internet]. 2026 Jun. 30 [cited 2026 Nov. 12];3(01):466-77. Available from: https://biosciinsights.com/index.php/BI/article/view/67